layout.c

   1 /*
   2  * layout.c - layout management
   3  *
   4  * Copyright © 2007 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <X11/Xatom.h>
  23 #include <X11/Xutil.h>
  24
  25 #include "tag.h"
  26 #include "xutil.h"
  27 #include "focus.h"
  28 #include "widget.h"
  29 #include "window.h"
  30 #include "client.h"
  31 #include "screen.h"
  32 #include "layouts/tile.h"
  33 #include "layouts/max.h"
  34 #include "layouts/fibonacci.h"
  35 #include "layouts/floating.h"
  36
  37 extern AwesomeConf globalconf;
  38
  39 #include "layoutgen.h"
  40
  41 static void
  42 layout_raise_floatings(int screen)
  43 {
  44     Client *c;
  45
  46     for(c = globalconf.clients; c; c = c->next)
  47         if(c->isfloating && client_isvisible(c, screen))
  48             XRaiseWindow(globalconf.display, c->win);
  49 }
  50
  51 /** Arrange windows following current selected layout
  52  * \param screen the screen to arrange
  53  */
  54 static void
  55 arrange(int screen)
  56 {
  57     Client *c;
  58     Layout *curlay = get_current_layout(screen);
  59
  60     for(c = globalconf.clients; c; c = c->next)
  61     {
  62         if(client_isvisible(c, screen) && !c->newcomer)
  63             client_unban(c);
  64         /* we don't touch other screens windows */
  65         else if(c->screen == screen || c->newcomer)
  66             client_ban(c);
  67     }
  68
  69     curlay->arrange(screen);
  70
  71     for(c = globalconf.clients; c; c = c->next)
  72         if(c->newcomer && client_isvisible(c, screen))
  73         {
  74             c->newcomer = False;
  75             client_unban(c);
  76             if(globalconf.screens[screen].new_get_focus)
  77                 client_focus(c, screen, False);
  78         }
  79
  80     layout_raise_floatings(screen);
  81
  82     /* if we have a valid client that could be focused but currently no window
  83      * are focused, then set the focus on this window */
  84     if((c = focus_get_current_client(screen)) && !globalconf.focus->client)
  85         client_focus(c, screen, False);
  86
  87     /* reset status */
  88     globalconf.screens[screen].need_arrange = False;
  89 }
  90
  91 int
  92 layout_refresh(void)
  93 {
  94     int screen;
  95     int arranged = 0;
  96
  97     for(screen = 0; screen < globalconf.nscreen; screen++)
  98         if(globalconf.screens[screen].need_arrange)
  99         {
 100             arrange(screen);
 101             arranged++;
 102         }
 103
 104     return arranged;
 105 }
 106
 107 Layout *
 108 get_current_layout(int screen)
 109 {
 110     Tag **curtags = tags_get_current(screen);
 111     Layout *l = curtags[0]->layout;
 112     p_delete(&curtags);
 113     return l;
 114 }
 115
 116 void
 117 loadawesomeprops(int screen)
 118 {
 119     int i, ntags = 0;
 120     char *prop;
 121     Tag *tag;
 122
 123     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 124         ntags++;
 125
 126     prop = p_new(char, ntags + 1);
 127
 128     if(xgettextprop(RootWindow(globalconf.display, get_phys_screen(screen)),
 129                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 130                     prop, ntags + 1))
 131         for(i = 0, tag = globalconf.screens[screen].tags; tag && prop[i]; i++, tag = tag->next)
 132             tag_view_byindex(screen, i, prop[i] == '1');
 133
 134     p_delete(&prop);
 135 }
 136
 137 void
 138 saveawesomeprops(int screen)
 139 {
 140     int i, ntags = 0;
 141     char *prop;
 142     Tag *tag;
 143
 144     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 145         ntags++;
 146
 147     prop = p_new(char, ntags + 1);
 148
 149     for(i = 0, tag = globalconf.screens[screen].tags; tag; tag = tag->next, i++)
 150         prop[i] = tag->selected ? '1' : '0';
 151
 152     prop[i] = '\0';
 153     XChangeProperty(globalconf.display,
 154                     RootWindow(globalconf.display, get_phys_screen(screen)),
 155                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 156                     XA_STRING, 8, PropModeReplace, (unsigned char *) prop, i);
 157     p_delete(&prop);
 158 }
 159
 160 /** Set layout for tag
 161  * \param screen Screen ID
 162  * \param arg Layout specifier
 163  * \ingroup ui_callback
 164  */
 165 void
 166 uicb_tag_setlayout(int screen, char *arg)
 167 {
 168     Layout *l = globalconf.screens[screen].layouts;
 169     Tag *tag, **curtags;
 170     int i;
 171
 172     if(arg)
 173     {
 174         curtags = tags_get_current(screen);
 175         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 176         p_delete(&curtags);
 177
 178         if(!l)
 179             i = 0;
 180
 181         i = compute_new_value_from_arg(arg, (double) i);
 182
 183         if(i >= 0)
 184             for(l = globalconf.screens[screen].layouts; l && i > 0; i--)
 185                  l = l->next;
 186         else
 187             for(l = globalconf.screens[screen].layouts; l && i < 0; i++)
 188                  l = layout_list_prev_cycle(&globalconf.screens[screen].layouts, l);
 189
 190         if(!l)
 191             l = globalconf.screens[screen].layouts;
 192     }
 193
 194     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 195         if(tag->selected)
 196             tag->layout = l;
 197
 198     if(globalconf.focus->client)
 199         arrange(screen);
 200
 201     widget_invalidate_cache(screen, WIDGET_CACHE_LAYOUTS);
 202
 203     saveawesomeprops(screen);
 204 }
 205
 206 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80